PMID- 26238479
OWN - NLM
STAT- MEDLINE
DCOM- 20160802
LR  - 20181113
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 5
DP  - 2015 Aug 4
TI  - Using non-Markovian measures to evaluate quantum master equations for 
      photosynthesis.
PG  - 12753
LID - 10.1038/srep12753 [doi]
LID - 12753
AB  - When dealing with system-reservoir interactions in an open quantum system, such 
      as a photosynthetic light-harvesting complex, approximations are usually made to 
      obtain the dynamics of the system. One question immediately arises: how good are 
      these approximations, and in what ways can we evaluate them? Here, we propose to 
      use entanglement and a measure of non-Markovianity as benchmarks for the 
      deviation of approximate methods from exact results. We apply two frequently-used 
      perturbative but non-Markovian approximations to a photosynthetic dimer model and 
      compare their results with that of the numerically-exact hierarchy equation of 
      motion (HEOM). This enables us to explore both entanglement and non-Markovianity 
      measures as means to reveal how the approximations either overestimate or 
      underestimate memory effects and quantum coherence. In addition, we show that 
      both the approximate and exact results suggest that non-Markonivity can, 
      counter-intuitively, increase with temperature, and with the coupling to the 
      environment.
FAU - Chen, Hong-Bin
AU  - Chen HB
AD  - Department of Physics and National Center for Theoretical Sciences, National 
      Cheng Kung University, Tainan 701, Taiwan.
FAU - Lambert, Neill
AU  - Lambert N
AD  - CEMS, RIKEN, Wako-shi, Saitama 351-0198, Japan.
FAU - Cheng, Yuan-Chung
AU  - Cheng YC
AD  - Department of Chemistry and Center for Quantum Science and Engineering, National 
      Taiwan University, Taipei 106, Taiwan.
FAU - Chen, Yueh-Nan
AU  - Chen YN
AD  - Department of Physics and National Center for Theoretical Sciences, National 
      Cheng Kung University, Tainan 701, Taiwan.
FAU - Nori, Franco
AU  - Nori F
AD  - 1] CEMS, RIKEN, Wako-shi, Saitama 351-0198, Japan [2] Physics Department, 
      University of Michigan, Ann Arbor, Michigan 48109-1040, USA.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20150804
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
RN  - 0 (Light-Harvesting Protein Complexes)
SB  - IM
MH  - Benchmarking
MH  - Energy Transfer
MH  - Light-Harvesting Protein Complexes/*chemistry
MH  - Markov Chains
MH  - *Models, Statistical
MH  - Motion
MH  - Photosynthesis/*physiology
MH  - *Quantum Theory
MH  - Temperature
MH  - Thermodynamics
PMC - PMC4523852
EDAT- 2015/08/05 06:00
MHDA- 2016/08/03 06:00
PMCR- 2015/08/04
CRDT- 2015/08/05 06:00
PHST- 2015/03/27 00:00 [received]
PHST- 2015/07/09 00:00 [accepted]
PHST- 2015/08/05 06:00 [entrez]
PHST- 2015/08/05 06:00 [pubmed]
PHST- 2016/08/03 06:00 [medline]
PHST- 2015/08/04 00:00 [pmc-release]
AID - srep12753 [pii]
AID - 10.1038/srep12753 [doi]
PST - epublish
SO  - Sci Rep. 2015 Aug 4;5:12753. doi: 10.1038/srep12753.